Probably not, as that would preclude the ability to bypass/enable blocks on footswitch press vs. release. Any time you add a press-hold, double-press, or double-switch function, you lose the ability to engage something immediately upon press.
Understandable. I know the Line 6 team reserved several MIDI commands specifically for future use, any chance some of those were for these additional blocks?
wish I had done that from the start